 okay so nature of matter I think all of you have in all the better nature of matter has been started and you have a little bit idea of solid liquid and gas and I think you have also idea of which both what is the motion of particle in solid what is the motion of particle in liquid and gas and which is diffuse which diffuses fast yes all of you know the diffusion yes okay so diffusion related questions related to the particles arrangement related to the particles motion so don't worry it is a very interactive the questions you find that the questions are very well framed and it is not that tough but I am sure that definitely you are going to make mistake because after reading options my last class experience was people were as I said that students try to give answer as fast as possible but at that time they miss the right option so take your time and give the answer only after when you are very sure that okay this option is correct then only mark the answer because you don't have option to you don't have option to you can't change your answer once you are done okay so take your time and answer it and don't worry nothing is very tough everything you have learned already now just a minute I'm saying guys if you spend time on chatting with others that probably you'll miss you know the timing so all all attention on the quiz now whatever you have to yes diffusion has not done in RNA don't worry that the diffusion is nothing but particles move from higher concentration to lower concentration now otherwise I will explain if you have any doubt I will explain in that diffusion just means when you open when you allow the gas from one pressurized container if you allow it to expand it will go from higher concentration to lower concentration that's it don't worry in one two questions you will understand the concept now again guys the agenda is not to see people are topping the chart and all that stuff the agenda is for you to understand and you know get the questions said yes there will be fun element that we all you know would like to have I am myself participating by the way so I'll give you a tough competition see now the other thing is in case you let's say there's a lag there's a glitch or something do not worry don't don't really panic this is you know because it's an internet based thing so might happen so it's don't worry focus on the solution part so let's say if you get some question which is not clear to you would request you to mark those question and take it down and we have planted in such a way that towards the end we discuss everything or during the quiz itself we keep on discussing all those things okay no I will not get everything right I'm learning from classes from Prabhav sir as well so don't worry I'm as good or as bad as you all so let's start guys all the best let's see okay fine should we start sir yeah we can start right please your mic on you yeah so this is the first question guys so probably this is last question I believe just reset it reset it this is just a minute just a minute you're to present it from here just a minute guys we'll restart there was some yeah from here present it I am placing it in the chat no problem no problem just two minutes Prabhav sir you have to go to the presentation mode play from here yeah sir your presentation no no you have to go to go to your presentation go there and now the blue button there yeah yes are you ready guys now we are starting the first question to you is let people join in yeah let people join in let people join in and then start yeah I think all of them all of you there all of you are there in the other thing yes very good so www.menti.com if you're not able to log in change the machine change the phone or you know it will be an internet glitch because all others are able to do it so change the machine maybe yeah so yes sit down all all okay sit on the ground so can we start all of you ready yes go ahead sir yeah here's the first question guys yeah look at the screen and there will be four options the question says in which changes to the particle move further apart changes to the particles move further apart gas to liquid is w liquid to solid is x and solid to liquid is z and liquid to gas is why so all of you you know you will get 90 seconds for each problem each question and you can see the timer which is on the left bottom on the left of you can see there is a green sign by that you can understand that time half time has already passed now you have 40 more seconds and if all of them and all of you have entered let's say answer then automatically we'll go to the students sir have you entered only two answers are left I haven't entered yes fastest finger yes it is there so one more is to one more is to there one more is to be there you know he has to put up she has to otherwise we have to wait yes I think it's done now 63 still I think 63 one more of the problem okay wait yes so three two one so yes so this is the answer answer is the okay so you can explain it out yes yes yes so this is the okay so parts then so part Jan is on top then Dhruv Jagra, Vignesh, Monisha, Naomi, Rishabh, Arthur, Adush and Srijan well done guys okay easy okay so part was fastest 991 so out of 1000 he gets 991 and the tenth and I believe all of you would be getting the individual scores as well or at least individual rankings yeah okay those who are wrong for them I'll tell you whenever solid converts into liquid particles move apart whenever liquid converts into gas particle further move apart that's it that's very easy question yes and it out answer was the anyone who wants to get it explained once again can put an X so that we can monitor and help you with the question if you want explanation in detail explanation you can write there okay fine okay great oh these are the ranks they're saying no worries let's let's go to the next question guys ready for the next question on your mark now next question is here so two diagrams are given three diagrams rather which change occur during boiling yes you have to keep your mics on mute always you can make me host so that I can control that okay everyone has voted so you can just move to the answers okay so okay so I got it wrong so sad wrong answer it says I don't get any point for this good but still there are few people so that see who you see now that the person sees me so I have okay okay here is the updated leaderboard this time part you were little slow and who was the fastest among all it was Monisha Monisha very good Monisha keep it up yes yes Monisha you can now beat part and others also you know at the end of the game you will find that there's a huge change in the leaderboard so try your best give your best question guys come on so if you if you are on a phone you can click it will become you know or you can go to let's say you can use that double finger as zoom in if it is not that legible and you can also play it in landscape mode if you're on a mobile so that you can read the options so options will be there in the landscape more it goes down right so the question says which statement about the physical states of substance X is correct well done very good lots of people have already answered there are 15 more to go so you can states are jumbled up yes it's our jumbled up so that's why you know everyone has voted very good so we can go to the solution oh my god so that's again there are few people who have not got it correct so you can explain sir what was the question yeah you can yeah okay very good so now the board has changed and Monisha is again fastest very good Monisha keep it up good fight okay so you're okay now see the obstruction was the diagram shows arrangement of this okay which statement of about the physical state is correct okay so to answer this question first option was particle in state one the state one vibrates about the fixed position okay state one if you if you have no taste it was liquid first I will write what was what state one was liquid okay and state two was if you remember the question then I'm writing like this if you don't remember I should I open the question again state two and state three please let me know if you have any doubt state three was solid okay because particles were very close to each other then party in in state first option was particle in state word vibrates about a fixed position no no in liquid particle moves from one place to another it does not vibrate they move from one place to another but in solid what happens they just vibrate about their main position okay next option state one changes changes to state two by diffusion okay it does not change by diffusion it changed by evaporation you need to evaporate or boil okay so it is not correct see option state two changes directly a directly to state three by condensation no no by condensation gas will convert into liquid no no not directly by condensation so last option was the substance in stage three has a fixed volume very it's a true whenever you have a solid it has a fixed volume okay yeah liquid is also having a fix it takes the shape of a container and gas also gas does not have a fixed volume it can change depends on the container any doubt yeah so I have a question for all of you how many states of matter are there five so why are we studying only three here what is the fourth and fifth so all of you know all of that there's a famous scientist from India who's involved in the fifth state what is that who's the scientist yes good very good very good nice nice to know that and any example of fourth state what is fourth state someone said what is fourth state name is plasma example of plasma state molecules in the sun are in a state of plasma okay great how do you know that chemistry in sixth grade is it but then we haven't we haven't been anywhere closer to son how do we know that it is plasma state because of that of some of fluorescent substances or something so have you have you ever seen solar wind Anush right how do we know how do we establish this fact that hey it's made up of plasma nothing else how do we know that there's a very famous you know our revolutionary invention in the history of science which led to all of that it's called spectroscopy okay so yep there was a there's a you know instrument called spectroscope which let us know what is every every star is made up of hydrogen and helium and things like that yep so you will learn about all of that a little later but then my question was this that you know you should be asking this that how do we know how do you know that it is made up of hydrogen son is one point I think what 150 million kilometers away something bad so how do we even figure out that it is made up of no that's that's your talk of you're talking about a Doppler's effect that's that that gave us the idea that universe is expanding that redshift you're talking about anyways so let's go and move to the next question good that you know there are five states of matter great okay next question is okay in which process to particles move closer together but remain in motion options are also there I have to also work this time when a Monisha was on nose on the first in the first position this time I'm going to be in the first position see now I have got all the three wrong answers so far so this time I am I am determined to get correct in which process to particles move closer together but remain in motion freezing okay you have already voted Monisha that's not fair you should have wait for me yeah so I vote for freezing let's see if I get correct or not yeah so all of you would complete your marking the answer so that we can move ahead no no I am I am trying my level best region to get it right but I'm really weak in you know my chemistry is not that great use of okay so yes okay here is the timer and it's over I took 31.983 seconds to answer because I was struggling with the answer actually I got frozen so you're there hello go to the next slide please what are you there hello yeah professor can you hear me hello yeah go to the next slide please no problem okay next question guys you you can you can explain the answer at least okay after this okay after this question I like me don't worry that answers have been registered don't worry it was just that it got stuck yes the next question is just click on the or you know you have to just what do you say zoom it in while doing it on your answers have been registered don't worry stuck so the changes that occur when the system changes state are shown below so a professor you can zoom in your screen for for those who can see from here itself okay okay maybe just you know view 100% maybe 120% like that oh you click on the this thing is it on on screen I touch that's it I clicked on screen means so otherwise okay explain explain the answer okay fine I'm explaining both the questions first explain this one that I go to the next last one also so in this question there was a change occur that occurred when substance changes I think most of you were not able to read that so the changes that occur in the substance change like this it was given solid okay and okay so just give me one minute I will show the question on the screen you can just show the PPT maybe I show from my end okay so here is on the screen I'm sharing no worries you can go ahead and share you can explain this thing it's a no need to show the question no okay so here the big paper also you can show yeah no problem the question was like if solid converts into the first you have this solid it converts into liquid and then it converts into gas and this was the question and this process world wz x and y the blue z x and y okay yeah we can see that who's that just we log this log out and log in oh okay can you see my screen yes just came out and then reload it okay this was the question and everyone see now yes so the question was the change it was the first process which process wx yz is occurring in the following 4 situation butter melts on warm warm day so butter melts mean solid to solid to liquid so solid to liquid must be the answer of first okay so if you see the options solid to liquid is w so okay answer will be among a and v what is the next process water condenses on a cold surface water condenses on a cold surface means liquid becomes solid liquid become solid water condenses on cold surface means liquid become solid so next will be z just a minute okay for they have given solid liquid butter melts on a warm day butter is a solid and it becomes liquid first one is w second water condenses on a cold surface when it condenses condenses means gas converting into liquid condenses they have written okay gas converting into liquid is nothing but w so w sorry y so what is the answer w and y only option you can see w and y is b okay okay if I go to the next two options the volume of liquid ethanol in an open beaker reduces what happens when there is a open beaker of ethanol okay so what will happen liquid is ethanol is liquid yes and it vaporizes because it has a very less boiling point okay so it is a volatile liquid so it converts into gas so answer is x so this is x what is the last ice forms inside a pleaser okay inside a freezer liquid convert into solid z so answer is b is it clear to all of you okay any doubt no okay fine if I move to the next question next question was means last previous question this was the question which of the following in which process do particles move closer together but remain in motion okay condensation yes particles come closer are they are they remain in motion what happens in condensation gas become liquid yes they are in motion okay someone may get confused with the d option that is freezing particles are again coming closer but they are not in motion you can say they are in the vibration but if you say the motion again many of you can say that sir it is also motion but you should understand that which is the best option condensation particles are actually moving from one place to another in a liquid that's why answer is a is it clear to all of you any questions guys any questions you okay no one I got it out very good I'm moving to the next question yeah so okay so get ready for next question don't click on this just let it be like that maybe yeah so don't do it in all that maybe that that this thing so I can see the question very well so no problem the diagram shows our sugar lump in our cup of tea which two processes must happen to spread the sugar evenly in the tea oh my god people are so fast while I was reading people were just answering this is so it is shifting any other all the other things but okay I read the question for you the diagram shows the sugar lump in the cup of tea which two processes must happen to spread the sugar evenly in the tea so no worries it is at the end of you know at the end of the user if you're in a mobile it comes very okay I have to answer also so so it's the best way to play this is on a mobile I think it's a you know where you get the answer and this thing in a very concise window okay just two more students I think two or three more students I have taken some 48.601 second my god they have they are telling in milliseconds also so they're counting your millisecond hit oh my god 11.4876 people are so fast oh someone has taken only three seconds 7.3 amazing you guys must go to KBC here is the answer and still oh my god there are few people have not got it so let me discuss the question with you the question was very easy there was a tea you can see the cup of tea and you have dissolved something you have put something sugar here and it is a hot cup of tea now see what will happen when you put a sugar so first thing is sugar particle is this much big so what will happen it will first break into the smaller particle smaller particle it will break okay so this become this is known as dissolving or dissolution so this is getting dissolved so first processes it is getting dissolved by breaking into the smaller pieces second is when let's say it become a small small pieces here okay what will happen they will move from one place to another place because particles of sugar will get pushed by the particles of water which are also continuously moving so one sugar particle first it will reach here then again one more water molecule will hit this this will reach here then again it will hit this will reach here so this is known as diffusion okay by the diffusion one particle is from the bottom it will reach to the top is it clear or it will go around the whole this cup so particles this the sweet the sugar will get disperse or get will get will go to each and every point of this cup of tea is it clear so it doesn't matter whether you are drinking from this side or this side you will get the same taste any doubt students guys any doubt please let me know no I think that you can go ahead sir so I think most of you are trying to give answer fast that's why you are getting you are doing mistake so please don't do this just read the question properly and then give the answer and I told you options are very good in this these questions so first read all the options and then give answer okay the fastest was Raghav okay good morning sir okay I'm moving to the next question so look at the phone to get you know on your side of the browser what you can do if it's not visible you can just zoom it in you know but in fit phone it appears beautifully okay I'll read question if you clear in the phone side so here open the world file for once so that they can read what it's okay I think they are all I think they are not having any problems if they have any anyone is having any problem in seeing the question at your end guys you are able to see it right so they are comfortable with questions but yes next time around probably we have to just use the previous question concept use previous question concept here no you money guess da don't guess try to try to you know break down analyze and then solve like that so that means we need to explain this question because many people have guessed it very good Raghav Raghav has written I took time but I got it right very good you should approach like this on that that's my question also how do you know that it's right it has not been declared as of now okay so here you go and as usual I am again wrong so that's add and so the question was again it was very easy question if I tell you the question they have asked like you are putting something from you are putting something from this side from one side you are putting one salt and from other side let's say they have given lead and iodine okay so lead ion is coming from this side will not bother about what is the ions here but you should know that PB I2 is yellow in color that's the only thing so PB I2 is yellow okay if it is a yellow and and the ions are coming from this side and this side and you are getting precipitated on middle so what does this mean if you're getting precipitated in center means PB plus 2 iron must move from this side like this and I minus must move from this side like this and as I told you this is nothing but it is a diffusion you put lead here but with the help of water molecules this all lead ion pushed to this side and and in the entire container you will find PB plus 2 and I2 all over they are moving but due to diffusion because this is the nearest point if you see it is the nearest location from this point these two if I say this point as a A and this B so nearest point is this only where they can meet so maximum precipitate you will get in the center only but why this happened because of the diffusion is it clear to all of you it is a diffusion whenever you put some solid in a liquid up to some point of time the solid will diffuse to throughout the liquid if diffusion was not there maybe you will not be able to have tea or coffee and you know all those what do you say excuse me sir yes yes I have a doubt like if the precipitate is on one side is still that counted as diffusion yes yes definitely let's say precipitate appears here let's say precipitate appears here this means what I minus diffusion is very less I minus is very fat and it does not diffuse very fast but this means that PB plus 2 is very fast it is very small so or it is a very light in weight so it diffuses very fast okay it diffuses like this and it reach here so what this is mean diffusion always dependent on atomic mass if heavier the molecule diffusion will be very less if you put this lighter molecule diffusion will be very fast so it appears on one side means one ion diffuse very fast as compared to other this means you will get here let's say I put I put precipitate on this side so what is the conclusion which ion is heavier PB plus 2 or I minus if I say precipitate appears here which ion is heavier can you guess I my name is heavier very good no no Pranav you see which ion is heavier because I only form when PV and I will combine and precipitate it's near to this this point near to a this means what TV is heavier I minus is coming fast as compared to PV definitely it will never form just below the PV I would have written like this near to the point A if precipitate appears here this means that the ion which is released at a point A is moving with less speed as compared to ion which is coming from B side and it is moving fast is it clear to all of you understand who's the person can you identify so I'm Sunaina yeah Sunaina yeah so your question is if the precipitate forms at one particular corner will it still be a case of diffusion correct yeah yeah so what professor explained would was a professor just correct me if I'm if I'm wrong if you know that is still the case of diffusion right yes sir yeah so and is the explanation okay Sunaina because I didn't understand it well yeah Provencer can you just see see Sunaina if I say that there are two colors I take iodine is a iodine is green in color now and lead is lead is let's say yellow in color okay now my point is if I'm saying that precipitate appears on near to a okay just assume that distance between point A and B is this much this much distance okay now if I'm saying precipitate appears at this point what does this mean that yellow is okay and at the same time I release PV plus 2 and I minus in a container so what does this mean PV plus 2 is taking is is moving less as compared to I minus because I minus has moved from this point this B is here let's say I minus has moved from this point to this point okay and a and PV plus 2 has moved from this point to this point which line is which line you see the longer line this line or the right side or left side so the right side right side line is longer means right side ion ion release that right side or at point B is moving faster can I say that yes because that's why it is moving towards the A with and it moves a lot in a specific time because both got the same time to move and B moved more this means that B is lighter just assume if you have a racing with a with a friend which is very who is very thin and let's assume I have not seen you but but let's assume you are very fat so who will win the race in a place a in who will who will run more in 5 sec in 10 seconds so the one who is thinner one who is thinner so can I say that here your green thing is moving more can I say that it is iodine is a lighter can I say like that yes sir can I say that the green thing is lighter yes yes so can I say that diffusion depends on the mass of the atom yes sir so is it clear to you like here I said that okay they have given they have not come they have just given you that it is in the middle so they don't want you to go in that direction but to give you the clarity of diffusion I took as a example let's say the precipitate appear on this side mere to point a this means that B is lighter the point of the ion which is released at B is lighter and I on release that is heavier is it clear okay moving to the next question so who's now on top okay let's see so here is the new thing Monisha still leading the board Srijan closely following okay so here is the oh very close fight only 15 points behind oh Srijan is 15 points ahead okay guys next question this time I'm going to get it correct for sure okay so this is what is this crystal of purple potassium magnet 7 was added to each of the beakers shown in the diagram now people two three people I've already there you are giving me complex guys don't don't really you know mark the answer so fast sir should I show pressure in word file no question is pretty much visible here or at my end okay fine fine then it's fine now I can zoom it and zoom out all those things are possible but then problem is all of them have answered but I have no clue what you are asking this question so let me try so this result color spread faster in cold water particles move faster at a higher temperature this is like mathematics to me I don't understand anything okay so people have done oh I have to answer anyway so let me yeah one of your and has asked this question in my previous question sir what if I heat the substance at that end so the person who asked this question you will get benefit in this question you know the person will get benefit for sure he is going to get a reward from me surely but what's the name of the person who has the question okay so okay okay so don't ask this question okay so don't the girl is going to get oh my god this time again oh I wanted to get it right but unfortunately wrong once more okay so only very less number of students had made mistake in this so if I explain this question to you it is very easy again same type okay do you want explanation anyone want explanation in this you know I don't think so anyone wants anyone who wanted I have a question okay okay but then we will lose track of the question the question is okay so you can see the question here in front of you this was the question that they have just told that one weaker contains hot water and other becomes cold water very easy thing whenever there is a hot water you can understand like speed of water particles the molecules of water is moving with very high speed so if I say someone is moving with very high speed okay let's assume let like okay like you are here let's say you are the particle of solid you are the particle of solid okay and someone is coming someone is coming here okay let's say you are a particle of solid and someone is coming with very high speed so if it is coming with very high speed so you will get impact with you will get a greater impact as compared to one who is coming is coming with lower speed yes or no yes okay similarly here you have a solid particle and here a water molecule water molecule if it comes with very high speed it helps this solid particle to go more or to travel more in lesser time because water particles are pushing it again and again with very high speed okay so but if you take a solid particle where water particles are water particles are pushing it but with lower speed so this means that diffusion will be less in this case here I can write low temperature and here I can write high temperature okay so if at high temperature because particles are moving faster diffusion will be more so you can write diffusion is diffusion is more more diffusion or here less diffusion any doubt you can as you can understand it by like this example if some person is coming with high speed you will get a more impact force or you will travel a more distance after getting impacted or after collision okay I am moving to the next question 60 second place sad it is now I will improve this time okay so the diagram shows method of separating a substance that contains x and y which types of substance can be separated as shown sir you are not finished reading the question half of them have answered this is so bad okay so like this time I'm going to this is compounds no option a is correct so I will I will click on a no I don't know so people are comparing their time okay I took 28.437 seconds by the way still it's not half time like you have seven seconds three seconds and all that oh people are really very fast and they have more you know they have better what do you say computer skills than we people more we are computer illiterate kind of people these people are much smarter yes okay but still four students have not answered okay no problem my knowledge is very limited guys so I came down from three to nine last question no problem you look at your this thing harita in your mobile phone you can zoom it they are reload reload no problem yeah if you have to just figure out why here in your screen it's actually a little smaller in size next time we'll make it sure make it perfect okay here is oh I once more I got it wrong oh no very good so I don't think that this question needs explanation I think most of you are clear like mixture you have whenever there is a mixture you separate it like this compound is a pure substance element is a pure substance then what you are separating nothing okay okay okay okay okay in this point in this point I want to ask you one question is ice of your substance is water of your substance sorry is water a compound is water a compound okay and is is s8 and is s8 an element s8 an element s8 sulphur okay one has written no s8 an element molecule okay two have written no three four five six have written no okay s8 is also an element that's what I want to tell you here always remember definition of element is one type of atom should be there and it should not be separated by the chemical means okay so it is a it is an element yes it is molecule as well my question was is it element you should say yes sir it is element it is molecule also no problem at all both it is possible that an element can be a molecule a few drops of perfume where oh my god people have already oh my god this is no this is insane how can you be so fast nice few drops of perfume were spilled on the floor few minutes later the perfume could be smelt a few meters away which two processes had taken place so this distillation and condensation distillation and diffusion evaporation and condensation evaporation and diffusion this time i'm going to get it correct yes i hope sir you are putting distillation and diffusion no i have picked up something else this time i know this time is you know you are trying to you know just uh this your everyone has voted first time okay no no yeah oh yes see i got it correct yes oh first three students have done this question uh has right has done this right okay the question was very easy when you put a spray on the floor first it will evaporate and then only it will move otherwise how it will move so first evaporation is there once it become a vapor then it will start diffusing is it clear yes so i think this is easy for all of all of them great next come on come on let's finish this okay okay okay okay okay next question so here is the new chart anyways it's not finished yet guys fight to the finish show next next next answer this time also and now i'm going to come in the reader board to see the what diagram shows the result of dropping a purple crystal into water and what water purple crystal after five years purple solution chemical reward which process takes place in this experiment chemical diffusion dissolving what i mean this time also i am going very good i took pay my i always think that i have clicked but it doesn't take my right now it is 25.574 seconds good good good good good now i'm remembering my chemistry days 70 seconds 17 seconds wrong okay my screen wasn't loading for like oh my god okay so here is the answer and the answer is d yes so those who have those who have clicked the what lots lots of people all so then that means you are confused between chemical process and a physical process i guess hence many people have marked a it's certain now i can explain this very well see this is certainly this is certainly not a chemical reaction guys it's just diffusion and what the other thing was something else was there so hence i don't see it to be a chemical yeah so those who have marked a it's not certainly not a chemical reaction right it is it is not a chemical reaction and if you want the explanation this was the question given to you by the way huh what is this crystal okay this crystal is k m n o 4 okay purple crystal is point for chemical reaction it is not a chemical reaction second is diffusion yes it will diffuse the whole thing become purple okay is the dissolving involved why explain in previous last few i don't remember which question i explained that particle first break into small pieces that is the dissolving this questions give you the clarity of diffusion dissolving and a chemical reaction very important questions so you should not uh you should understand all these three concepts this was very easy question even i got it correct see next next leaderboard region is worried about the leaderboard so you did you didn't get it correct this time region so now oh yeah we have a new person on first position oh misclicked oh oh oh hence i'm saying you know accuracy versus speed this is a game guys so you have to be very very clear whether you want accuracy yeah sorry yes professor you're saying something nothing nothing sorry so the diagram shows how the molecule in the exhaust gases diffuse into the air now those people who are clicking i will today figure out the names from the log so they looked all these 33 34 people who have clicked in no time i will talk to them i will just try to understand how can they do it so fast so which statement describes what happens i'm still reading the question see not even one minute completed which statement describes what happens to this molecule next okay wow raga pande 5.8 did you all all see this question you know the best part the best part of objective questions is you can uh you can see the options which are wrong if let's say you take the take your time you can identify which questions are wrong so but if you if you try to put answers as soon as possible or if you quickly answer means you are not reading all the options so you are reducing the chances of getting correct answer now people are saying that it is you know they're reading skills which is helping them uh mark it correct okay okay no time might you will see a different scenario altogether so hence never mind so let's let's let's try to you know see no problem good good there's those who are able to do it fast as long as you are correct there is no problem okay oh wow so there are lots of correct answers 56 people that's nice okay and i am in yeah great so maybe this could be the last question right or or we can finish the quiz quickly come on so let's do it nithya is on first position okay good good good going nithya very good oh here is the next question now this time i will also mark it fast liquid is heated and what is what just refresh the so that happens that's what i was trying to point out there is a always a fine balance between accurate accuracy and speed so you have to maintain that balance initial days accuracy is more important than speed when you are you know and it's a it's a it's like a marathon or you know long race where if you are if you speed up in the initial part of the game or race you will not be able to finish the race properly so hence first accuracy then speed first accuracy then speed speed will come if you're more and more accurate okay arushi thanks a lot for supporting yeah i have some supporter in in my audience too small yes i'm sure you have to you know i know uh you know in your mom you know hence next time you keep a mobile phone in mobile phone it renders so well we are also trying to look at look at how we can make a bigger question oh but no fine this question is based on a simple fact that pure substances have a fixed boiling point this is the thing which we tell in the definition only okay wait let me let because i know that all of you are focusing on the leaderboard so after you finish with leaderboard i will explain the picture okay so nitya gandhar srijan monisha vines siddharth siddharth nishant ragav surandhita okay so uh uh so far what i want to huh so always remember whenever there is a mixture the difference in mixture and compound or the pure substance and impure substances pure substance always have a fixed boiling point but impure substances not having a fixed boiling point it has a range of a boiling point so sir should we continue yes yes please let's let's continue so how many this is which question number let's see what is monisha monisha has a doubt yeah okay yes well and ask oh okay you have already published this question oh my god this fast thing yeah we'll definitely take care of that anush we are ourselves thinking of that so let us also get some data on how people are responding don't worry i have everyone who's clicking in the first click i am going to give calls to each one of you let's understand how because if you are really doing it because i know who has clicked when and whose answer is get you know it's correct it's maths okay why not option d in the previous one okay let me see the option d what was option d uh so other way of looking at this quiz is you know those who are really into solving questions they will not even mind which which rank they are right now okay very good i will answer okay so okay i'm going i'm coming to this question uh later first i'll explain the previous question so last option was there is nothing left behind in the test tube but okay it's fact nothing left behind in the test tube but how does it shows that test tube has a pure thing whenever you have a let's say when you put put your alcohol and water both will evaporate after some time both will evaporate so it does not says that you have a pure substance in a test tube understood so it's not always true that pure substance uh impure substance uh it all it's not always true that impure substance leaves residue after beating it may evaporate everything okay so now this question i think the question was okay which which substance would compress and what for what reason yes get guess would be compressed because guess particles are far apart answer is being you people are making mistake in very easy questions so please take your time it's request from my side otherwise maybe this we can just finish this quiz by the last this will be the last question guys so we are already you know we have crossed the limit of time so yeah look at your phone and and solve it okay so okay so the glass slide is removed diagram 2 shows the appearance of the gas jar after one hour there's no d there is d oh the option is molecules in bromine and air moved randomly the option is in bromine show the show the uh screen okay so in the screen okay don't worry don't worry don't worry hold on yes uh so this is the question this these are the options no still lot of time is left i think some 30 seconds early already answered so then that means you have you know so time's up this is the oh my god so lots of people are still so you need to explain this question maybe okay sir uh fine now i'm telling you why this question i put in earlier i didn't put this question but after reading the options i put this question in my this thing because the options are very good what is the option and i knew that you will take mistake in that question was why it is very clear that why bromine and gas is mixing here from here you are getting bromine br2 and from here let's say this is a container okay and from the this and let's say divide it in the two section from here you are getting the uh air okay it is other way around no problem let's write it like air is coming from this side air is coming from this side and bromine is coming from this side okay now they have asked why it will it will form something in which everything becomes same okay this means that bromine and air is everywhere so first thing is clear that if it is going everywhere this means that this means that that it is a diffuser why let's say i represent air with a green dot and green lines and i represent bromine with a pink line earlier the situation was like this but now the situation is you will see pink line everywhere and you are seeing the green line everywhere you are seeing the green line everywhere this means that everything has mixed everything has mixed means definitely the pink particles the bromine thing definitely goes up and reached at this point because you see the pink line here also means these particles have this particle has gone to this point and definitely a particle from the air side this is a particle from air side let's say it must have reached to this point because that because we have a green line on this side also this means that it is nothing but diffuser so answer d is the answer okay many of you have written answer a because bromine is denser than air bromine is denser yes it is correct bromine is denser than air but it is not the answer it is not answer because they have asked why they mixed this is not the reason that it is denser that's why they mix because of the diffusion they mix is it clear to all of you yeah so any question this so hence we will just wrap it up here Prabhupada sir because time is up and most of them would be you know hungry and going for this thing so they can you know just show them the final leaderboard okay final leaderboard yeah this will be the final leaderboard for today no so those who want to quit as in you know now we have to kind of you know maintain the timings as well so yeah so finally this is the two yes sorry so are we allowed to continue the quiz after this let's keep it you know one time limit who's he by the way who's the person so name so this is your graph yeah so basically you know we have to just keep the time limits also because you know you have to you have other engagements and you know we have to just keep it in a tight schedule never mind we'll have multiple such things and I just want so hence let us keep it like that for today and I have one thing to ask to all of you before you leave so irrespective of who's coming first and all and all that see for us it's not important for you might be because you are more keen to get a rank or something here our intention for this leaderboard and all that is just to keep you you know I give you some bit of excitement while playing this and you know but the more attention in my belief should be guys on the understanding part of it that's you know this is the loss of lots of quizzes are going to be there secondly if we conduct just a you know feedback from you let's say if we conduct a general knowledge quiz on this how many of you would be interested to participate so you know this is because I am I follow general knowledge a lot so hence uh yeah just a minute just a minute yeah so we will be doing anyways uh we will be keeping let's let's keep this entity of time so hence today's final leaderboard will be this we had only a few more questions left for hence don't worry about your positions and all that don't worry about your position so it is going to be changed it's not going to be fixed my question was this please please please I need some kind of feedback on this one is do we remove the fastest finger first first question vote yes or no fastest finger first yes or no so that I can you know uh understand how many of you are for it how many of you are for against it accordingly we'll take a call because this is all recorded just write yes sir I have a suggestion yeah who's who's this introduce yourself and say sir this is Raghav I have a suggestion we can keep the fastest finger first but like only for 500 points instead of 1000 and 500 points if you get the answer right we can give a give we can get a guarantee 500 if we get the answer right and 500 for faster fingers see all these you know see our intention Raghav is for you to uh see the first and foremost let me be very clear of why do we do is not for any entertainment uh so I think we can remove the fastest finger first even if we keep it it can be like the first 20 people will get a few points so because we we get more worried about our position and we think we don't know much if the fastest finger first is there okay so I will answer this see um uh first of all all of you understand what you know and uh it is I am trying to tell you from my own experience first of all see being competitive is you know please don't get me wrong what I'm just going to say being competitive is very good thing but not at the cost of knowledge so all this knowledge is waste many people started saying in the middle of it eliminate the options you get it fast now this is the first root of disaster for any competitive exams if you start eliminating at this stage you will be able to crack exams guys but after passing through IITs and all that I'll tell you from my experience you will definitely going to flunk in your IIT exams inside because there is no elimination over there so hence please understand right now till 12th grade at least this is the age to learn yes when you are going to face the competitive exams we have done statistical analysis on how to pick up choices also and get it right so we can tell you all of that but not now because if I tell you this you will always be taking shortcuts I know how to hit upon a correct answer with highest probability all those things you guys have never you know you don't even realize what to what a level we have done all of this in our life so hence I'm saying when the right time comes when the bridge comes I will be the first person to tell you how to eliminate but not now because if you start eliminating from now onwards only rest assured you will be able to ace you exams but that would be the last exam will be able to do it because throughout everywhere you go the importance will be on how much do you know and not how much did you eliminate okay so hence I again urge for those who are concerned about fastest finger and all that see first thing is accuracy definitely no no no point or no I have a question just let me finish let me finish so what I'm saying is if you are really concerned about your knowledge you will just focus on whether you're getting it right or wrong forget about the leaderboard yes there would be few people who would like to see themselves there so let them carry on with that so that is my suggestion so this is how I look at it so if I was there I would never care who is coming first or second I would see in 15 questions how many could I get correct that's it because that's my my my objective of this hour so hence those who want to see themselves there they let them run fast or whatever it's their prerogative those who want to solve only can come and enjoy or let's say you know learn how to solve problems that's it okay is it okay no monisha when mentee is just a platform see we have our own we are developing our own platform we're just you know kind of experimenting with this how you guys you know perform and the idea is you don't realize after this we download the entire data and we have each and every once click time so when you have done what every data is there with us we want to analyze because I am very concerned about the fact that most of you are blindly just going ahead just to see your name over there you're just clicking the option that's something you know no no don't why why do you want to stay out of this right so hence my only this thing is why monisha why do you want to stay out of this you don't stay out of this the idea is for all of you to for this debate okay so hence okay never mind so my is he I will we will share from our experience that here right now all of us should be worried about let's all focusing on how many did you get correct that's it okay so that's that's the only thing right later on fastest finger and all that you don't even realize we have gone to that extent that this 13187 is going to be converted into currency now how cool that would be just imagine so hence I'm saying you know we there is you know no limitation through what we can do but then not at the cost of your knowledge buddies please understand we have gone through this phase and and we have experienced very you know all these instant gratification thing actually hampers so please trust me my experience I am telling you that we will try to make your learning more productive and effective rather than just superficial okay so thanks for your time and as I as I was saying we want to do our open book quiz like you know and I am very keen on subjects like history and you know what do you say geographies and practical science and things like that I just wanted a response from you if we do a open book quiz where it will be a data mining kind of a thing we'll have questions and you have to go through the book and answer would you be interested in that so depending on that we can take a you know another quiz or that sort of a thing and it will be incentive I don't worry all the points will come okay so the idea is this that let's say we will pick up one history topic of yours I have I have thousands of questions developed during my preparation days so all those questions are there what I can do is I can convert them into quizzes of sets of let's say 10s and 15s and then probably one fine day when you are free and we can set up a timing where you can just come on and you can just do you know this thing okay online yeah everything is online yeah the topics will be mostly your social science subjects but then not that mundane type it will be interesting and we will try to make it exciting okay yes fastest finger in history so we have to just read through that and the you know and the best part is you will have the book in front of you you can just mine the data and okay that is the that is the thing so book will be in front of you the question will be in front of you you have to read the book read the paragraph find the answer market and go ahead okay so we'll try to do for history geography all those interesting right do you agree so let's let's plan it I will come up with a plan we'll have a one hour quiz on maybe geography because geography is very close to my heart so we can start the geography with questions okay so thanks guys so we'll come up with that and plan it and we'll let you know so you know that way your social science facts will be there in your head bye bye guys take care good night and thanks and congratulations if at all you know that means something to use monisha but well done sit down okay thank you all of you and those who could not you know come up to these top 10 don't worry so I am worried more about how many you got correct rather than what was your position so thanks guys and see you again next week bye take care and stay safe good night to all anybody saying anything yeah yes in the quiz or the geography quizzes that can you not put fastest finger first yeah that we can do see we'll do see you guys have to just you know bear with us one day we'll eliminate fastest finger and see how was the response and then again you know we will keep on evolving because you guys are you know we are meeting for the first time so we'll also take some time to know you well and then probably you know don't worry we can do all such permutation combination so we'll eliminate fastest finger maybe in the next one and see the response and then again come back to yep okay fair enough see you bye bye thanks for suggestions guys and thanks for being patient and bearing with us nice crowd bye bye take care and enjoy your Sunday bye okay bye